Posted 1/6/2017 12:25 (#5748796 - in reply to #5748459) Subject: RE: 03 Chevy dually fuel tank issue
These units only pull fuel for the engine out of the front tank and the rear tank transfers fuel into the front tank. There is a transfer module which controls the system and also averages the fuel level in both tanks for the gauge.
Could also be the gauge but if not transferring fuel, could be the module or pump.
INDY
03 Chevy dually fuel tank issue
